Tien Szu Tseng of Taiwan has applied for a patent on a "device for collecting discharge of animal" (caution: contains NSFW language).
The following 9 figures (out of an impressively comprehensive 35) explain all you need to know:
An ingenious invention indeed, and certain not to run foul of the new, more stringent non-obviousness test. Just don't go using the poo-pod cartridge to harass innocent Sasquatch.